Engraving tool



March 22, 1932. I BLANCKERTZ v 1,850,655

ENGRAVING TOOL Filed Dec. 13. 1930 1 1.2 d 9 e d C g c 6 b J b l i a /n venfoh:

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Patented Mar. 22, 1932 UNITED STATES,

PATENT OFFICE I BUDOLF BEANGKEBTZ, OF BERLIN, GERMANY, ASBIGNOR 1'0 FIRE HEINTZE & BLANC- KEBTZ, OF BERLIN, GERMANY ENGRAVENG 'I'OOL Application filed December 13, 1980, Serial No. 502,218, and in Germany July 8, 1930.

This invention relates to a new form of tool, and more particularly a tool for periorlming chase work, engraving, etc., in metal Tools of the kind in question as hitherto employed consist of an engraving needle rigidly secured to the hand-manipulating portion, for example a wooden handle, and permit, by reason of their cylindrical form and extremely small dimensions, the production of merely very fine lines.

The tool according to the invention comprises a semi-cylindrical shaft of hard metal, for example hardened steel, having a cranked or set-ofi portion passing over into a flat, shield-like member, the free end of which serves for performing the engraving and may be furnished with any appropriate form.

The part of semi-circular cross-section serves,

in the manner of a nib, for introduction into the holder which, if desired, may be an ordinary pen-holder. The free end of the flat, shield-like section may be tapered and rounded ofi' according to different diameters, or alternatively may be furnished with a wide tip, which in turn may either be straight or shaped in desired form. If the width permits thereof, the tip will preferably be provided with points. In'order to impart to the flat, shield-like portion the necessary stiffness required by the engraving operation, the same may be suitably embossed, for example with the name or the trademark of the manufacturer or with any other suitable wording or design. I

The advantages derived from the new tool in face of the:- known forms may be summarized in the following:

Owing to the cylindrical form of shaft tools having selectively formed engraving tips may be fitted and employed as desired in the one holder. The holder may consist of a pen-holder of the usual type, which greatly facilitates themanipulation and reduces the outlay to a minimum, a feature of considerable advantage in the case of schools, etc.

The difierent forms of tip permit of the production of different widths of line, so that the engraving may be executed in fine or wide tracings as desired. As compared with tools of the existing kind the new form of tool of- .fers very considerable advantages as regards the cost of production, as the latter is performed by a simple stamping or pressing op eration.

The invention will now be described more fully with reference to the accompanying drawings, in which in the different figures the same reference characters have been em ployed to denote like parts.

Fig. 1 shows in plan view difierent embodiments of the engravin tool or nib, the tips bein of pointed, roun ed or wide form with or without teeth or serrations.

Fig. 2 is an elevational view of any of the tools or nibs according to Fig. 1.

in a holder, for example a pen-holder.

In the drawings or represents the part-cylindr ical shaft, possessing a cranked or setof? portion 71' passing over into a flat, shieldlike section a, the free end of which forms the engraving tip. This tip d may be provided withany desired form suitable for the intended purpose. The flat portion 0- may be embossed as at e for the purpose of stiffening, for example with the name or the trademark of the manufacturer or with any other suit able wording or design. For the purpose of use the tool or nib is fitted in a holder f.

The manipulation of the tool is extremely simple, and does not d'ifl'er fundamentally from that of the ordinary engraving tool. The metal foil, which may be of any appropriate kind, such as tin, soft brass or copper, aluminum, etc., is placed, for example, on a flat, resilient base, which may consist of a piece of linoleum, a layer of paper, a sheet of cardboard, pasteboard or the like, and engraved either free-handed or according to a desired pattern. Dependent on the pressure applied and the width of the tip used impressions of varying width ordepth are obtained in the foil which appear on the rear face thereof in the form of embossed or elevated portions. In this manner it is possible to produce any type of line, either in simple straight form or in circular pattern or design. If desired, the foil may also be worked upon on the rear face, which has the additional advantage that any stresses arising from the action of the tool on merel the front face of the foil and tending to uckle the same are thus compensated.

Subsequent working on the rear face of the foil will cause the latter to retain its fiat form. I To produce wider or larger impressions, the round end of the holder may be em loyed: If lines are drawn strai ht across the foil,

the latter will readily fol and may thus be formed into boxes or other articles of desired shape. Other examples of possible utilization are badges, brooches, door fittings, name plates, box lids, metallic signs, fancy boxes, hand-mirrors, etc., or, on a larger scale, ornamental work for doors or clock cases, commercial signs, tablets, etc.

It will be understood that no restriction is made to the specific forms of tool or nib shown in the drawings, and that various modifications are quite ossible within the meaning of the above and the annexed claims without departing from the spirit of the invention.

What I claim as new and desire to secure by Letters Patent is:

1. As a new article of manufacture, an engraving tool comprising a part-cylindrical shaft, a flat, rigid, non-flexible, shieldlik-e portion having an engraving tip, and a cranked portion connecting the said flat portion and the said shaft, the said shaft being adapted to fit in exchangeable fashion in a holder.

2. As a new article of manufacture, an engraving tool comprising a part-cylindrical shaft, a flat, rigid, non-flexible, shield-like fashion in a holder.

4. As a new article of manufacture, an engraving tool comprising a part-cylindrical shaft, a flat, rigid, non-flexible, shield-like portion having .a tapered end with wide straight tip, and a cranked portion connecting'the said flat portion and the said shaft, the said shaft being adapted to fit in exchangeable fashion in a holder.

5. As a new article of manufacture, an engraving tool comprising a part-cylindrical shaft, a flat, rigid, non-flexible, shield-like ,portionhaving a tapered end with wide shaped tip, and a cranked portion connecting the said fiat portion and the said shaft, the

said shaft being adapted to fit in exchange able fashion in a holder.

6.As a new article of manufacture, an

engraving-tool comprisin apart-cylindrical cranked portion connecting the said flat portion and the said shaft, the said shaft being ada ted to fit in exchangeable fashion in a hol er.

8. As anew article of manufacture, an engraving tool comprising a. part-cylindrical shaft, a fiat, rigid, non-flexible, shieldlike portion having an engraving tip, a cranked portion connecting the said flat portion and the said shaft, and a holder having a rounded end and adapted to receive the said shaft in exchangeable fashion at the other end. i

9. As a new article of manufacture, an engraving tool for embossing metal sheets comprising a part-cylindrical shaft, a fiat rigid, non-flexible shield-like portion having an engraving tip, and a cranked ortion connecting the said flat portion an the said shaft, sald fiat ortion extending longitudinally beyond said shaft and substantially in the basal plane of said part-cylindrical shaft, said shaft being adapted to fit in exchangeable fashion into a holder.

In testimony whereof, I aflix my si nature. RUDOLF BLANCK RTZ. 

